13. Standard Braille Dot Numbering Convention

A standard braille cell consists of six dots arranged in three rows and two columns. Each dot can be specifically identified by its number as follows:

1

Top-left (row 1, column 1).

2

Middle-left (row 2, column 1).

3

Bottom-left (row 3, column 1).

4

Top-right (row 1, column 2).

5

Middle-right (row 2, column 2).

6

Bottom-right (row 3, column 2).

Computer braille has introduced a fourth row at the bottom.

7

Below-left (row 4, column 1).

8

Below-right (row 4, column 2).

Perhaps a picture will make this numbering convention easier to understand.

1 o o 4
2 o o 5
3 o o 6
7 o o 8